composer.json

{
    "name": "a3rev/wp-email-template",
    "description": "This plugin automatically adds a professional, responsive, customizable, email browser optimized HTML template for all WordPress and WordPress plugin generated emails that are sent from your site to customers and admins. Works with any WordPress plugin including the e-commerce plugins WooCommerce and WP e-Commerce.",
    "license": "GPLv2 or later",
    "authors": [
        {
            "name": "a3rev Software",
            "email": "admin@a3rev.com"
        }
    ],
    "config": {
        "optimize-autoloader": true
    },
    "require": {
        "php": ">=5.6|>=7.0"
    },
    "autoload": {
        "psr-4": {
          "A3Rev\\EmailTemplate\\": [ "admin/", "classes/", "includes/" ]
        }
    }
}